Turritella radula is a species of sea snail, a marine gastropod mollusk in the family Turritellidae. The Mollusk is found in the south-eastern Bioregion, it is found mainly in Santa Cruz. Mexico, Acapulco, Ecuador and the Galapagos islands. Description Distribution Bioregions: South-eastern. Galapagos island groups: Santa Cruz. Mexico, Acapulco, Ecuador including Galapagos islands. References Turritellidae Gastropods described in 1843